<volist name="list" id="vo">
    <input type="checkbox" name="{$name}[{$vo[$map['key']]}]" lay-filter="{$name}" value="{$vo[$map['key']]}" title="{$vo[$map['title']]}" <if condition="in_array($vo[$map['key']],$valArr)">checked</if> />
</volist>
<input type="hidden" name="{$name}" id="{$name}" value="{$value}">